[Solved] Is it just me? I have problems uploading files with DataObject_manager and SWFuploader module?

This is the error I get on 2.4RC1. Note I also have problems on 2.3.7 that I can post here if you need.
Anybody can help?

[Warning] file_get_contents(/Users/xxx/Sites/silverstripe-v2.4.0-rc1/swfupload/javascript/swfupload_vars.js) [function.file-get-contents]: failed to open stream: No such file or directory
GET /silverstripe-v2.4.0-rc1/admin/assets/EditForm/field/Files/upload

Line 513 in /Users/xxx/Sites/silverstripe-v2.4.0-rc1/sapphire/core/Requirements.php
Source

* file_get_contents(/Users/xxx/Sites/silverstripe-v2.4.0-rc1/swfupload/javascript/swfupload_vars.js)
Line 513 of Requirements.php
* Requirements_Backend->javascriptTemplate(swfupload/javascript/swfupload_vars.js,Array,)
Line 129 of Requirements.php
* Requirements::javascriptTemplate(swfupload/javascript/swfupload_vars.js,Array)
Line 168 of SWFUploadConfig.php
* SWFUploadConfig::Bootstrap()
Line 20 of SWFUploadField.php
* SWFUploadField->__construct(UploadForm,Upload,,Array)
Line 265 of FileDataObjectManager.php
* FileDataObjectManager->getUploadFields()
Line 302 of FileDataObjectManager.php
* FileDataObjectManager->UploadForm()
Line 227 of FileDataObjectManager.php
* FileDataObjectManager->upload(SS_HTTPRequest)
Line 134 of RequestHandler.php
* RequestHandler->handleRequest(SS_HTTPRequest)
Line 152 of RequestHandler.php
* RequestHandler->handleRequest(SS_HTTPRequest)
Line 152 of RequestHandler.php
* RequestHandler->handleRequest(SS_HTTPRequest)
Line 147 of Controller.php
* Controller->handleRequest(SS_HTTPRequest)
Line 283 of Director.php
* Director::handleRequest(SS_HTTPRequest,Session)
Line 127 of Director.php
* Director::direct(/admin/assets/EditForm/field/Files/upload)
Line 127 of main.php